I'm sorry you are going through this!!! I could have written your story...hiding pills in his truck, the lying, the manipulating. I was a nervous wreck all the time...obsessing about whether or not he was using...analyzing his behavior...checking his truck at 3:00 in the morning when I should have been sleeping. It was awful!!! It never got any better for me until I left and filed for divorce. And even after losing his job, wife, and daughters...he still uses!
It's an awful cycle that won't change until the addict chooses to change it! I wish you the best. Take care of yourself and your children...he's an adult who must be responsible for his own choices!!!